人教版六年级数学下册解比例专项练习题113文档格式.docx
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x=0.3:
180
5
2491
—=——=—
5xx3
630.46
4—=—
722.6x
x6:
x=3:
3
564
4=—:
—20:
x=4:
57
104
—=—90:
x=22.5:
6
3.6x
0.9:
80=x:
60—:
15
3
4371
511.82
7—=—
462.8x
x90:
x=45:
369
10=—:
—2:
27
45
—=—9:
x=2.25:
8
1.2x
7
30:
90=x:
8—:
x=60:
1.2
6
6756
7xx7
191.27
5—=—
380.4x
5
293
2=—:
x=7:
0.5
49
42
—=—5:
x=1.25:
4
4:
0.6=x:
0.8—:
1344
3xx3
160.83
2—=—
272.2x
x4:
x=2:
487
6=—:
—0.9:
x=40:
90
48
69
—=—4:
x=1:
4x
9
0.6:
0.3=x:
7—:
12
8
6431
7xx3
711.29
662.8x
x0.7:
x=0.35:
378
—0.7:
x=0.2:
0.2
58
122
—=—80:
x=20:
1.6x
0.5:
4—:
1.5
1224
3113
480.6x
x5:
x=2.5:
364
x=0.9:
0.7
46
—=—2:
x=0.5:
9
4.8x
0.2:
0.2=x:
3—:
x=30:
120
2
1371
2xx2
210.64
362.4x
x8:
299
—0.5:
168
—=—70:
x=17.5:
6x
0.5—:
x=9:
2891
5xx2
1322
9—=—
841.8x
x30:
x=15:
276
—3:
x=90:
26
109
—=—0.9:
x=0.225:
5.6x
0.1:
60=x:
90—:
1697
3xx8
110.84
562.4x
x0.6:
586
—0.4:
x=0.4:
50
28
63
2.8x
3=x:
50—:
2241
7xx5
141.47
231.6x
x2:
384
—4:
x=80:
80
38
209
—=—0.6:
x=0.15:
2x
30=x:
150
1828
3xx7
110.65
731x
x70:
x=35:
398
5=—:
—30:
30
206
—=—0.5:
x=0.125:
7:
1751
2xx5
811.84
6—=—
732.8x
x0.3:
x=0.7:
60
128
—=—0.3:
x=0.075:
60:
40=x:
6—:
3584
540.63
432.8x
9=—:
x=8:
126
0.8x
10=x:
5—:
x=0.6:
1943
160.64
871.2x
486
3=—:
—0.3:
183
—=—8:
2.4x
3:
1451
411.86
372.2x
376
—9:
36
90:
1951
2xx4
510.63
440.6x
495
20
56
108